Spun a Rod Bearing..FLORIDA Help!

What would you guys say to this proposal.........

I've been offered to have my 904 removed, cleaned, rebuilt and mildly modded (nice upgrades), AND to have the driveshaft redone and balanced, and my "ready to go" 8-3/4 rearend swapped in for the existing 7-1/4.......

The guys at the shop will do all the work, on the ground and out the door for an extra $900..............

What do ya' think ?? :clock: Gotta let'em know by Wednesday.